NPA 2014-04

European Aviation Safety Agency — Rulemaking Directorate
Notice of Proposed Amendment 2014-04
Applicability Process map
Affected
regulations
and decisions:
Commission Regulation (EC)
No 2042/2003: Part-M and Part-145
Concept Paper:
Terms of Reference:
Rulemaking group:
RIA type:
Technical consultation
during NPA drafting:
Duration of NPA consultation:
Review group:
Focussed consultation:
Publication date of the Opinion:
Publication date of the Decision:
No
28.11. 2011
Yes
Light
No
3 months
Yes
Yes
2017Q1
Upon adoption of
the Opinion by
the Commission
Affected
stakeholders:
Air Operators/aircraft owners
Continuing Airworthiness
Management Organisations (CAMOs)
Maintenance Organisations
Competent Authorities
Driver/origin: Level playing field
Reference: — FAA AC 120-16E, Chapter 8 –
Maintenance record keeping system
— FAA 20-162 and TGL 41 on RFID
devices
— ICAO Annex 6 Chapter I 8.4
TE.RPRO.00034-003 © European Aviation Safety Agency. All rights reserved.
Proprietary document. Copies are not controlled. Confirm revision status through the EASA intranet/Internet. Page 1 of 44
Technical records
RMT.0276 (MDM.076) — 7.2.2014
EXECUTIVE SUMMARY
Technical records are the means to assess the airworthiness status of a product and its components.
Incomplete technical records may lead to a wrong assessment with safety risk.
Although there are specific requirements in the rule, the Agency infers from the number of queries
received that the provisions are not clear enough on what should be kept and for how long.
Furthermore, this NPA evaluates the use of new technologies and copies of the continuing
airworthiness records, providing more guidance on the commonly used information technology (IT)
systems. This evaluation is always done taking into account different operations/aircraft, so the less
complex aviation community is not imposed to hold records in the same way that more complex ones
are.
The Agency received a safety recommendation from AAIB which is addressed within this rulemaking
task (ref.: UNKG-2007-091). It recommends that the maintenance and overhaul records must be part
of the log book and retained until the aircraft/engine/propeller/component has been destroyed or
permanently removed from service.

European Aviation Safety Agency NPA 2014-04
Table of contents
Table of contents
1. Procedural information ............................................................................................. 4
1.1. The rule development procedure ............................................................................. 4
1.2. The structure of this NPA and related documents ...................................................... 4
1.3. How to comment on this NPA.................................................................................. 4
1.4. The next steps in the procedure .............................................................................. 4
2. Explanatory Note ...................................................................................................... 5
2.1. Overview of the issues to be addressed.................................................................... 5
2.2. Objectives ............................................................................................................ 5
2.3. Summary of the Regulatory Impact Assessment (RIA) ............................................... 5
2.4. Overview of the proposed amendments ................................................................... 6
3. Proposed amendments ........................................................................................... 10
3.1. Draft Regulation (Draft EASA Opinion) ....................................................................10
3.1.1. Annex I to Commission Regulation (EC) No 2042/2003 (Part-M) ......................... 10
3.1.2. Annex II to Commission Regulation (EC) No 2042/2003 (Part-145) ..................... 15
3.2. Draft Acceptable Means of Compliance and Guidance Material (Draft EASA Decision) ...15
3.2.1. Annex I to Decision 2003/19/RM (AMC to Part-M) is amended as follows: ............ 15
3.2.2. Annex II to Decision 2003/19/RM (AMC to Part-145) is amended as follows: ........ 29
3.2.3. Decision 2012/018/R (AMC and GM to Part-CAT) is amended as follows:.............. 30
3.2.4. Decision 2013/021/R (AMC and GM to Part-NCC) is amended as follows: ............. 30
3.2.5. Decision 2013/022/R (AMC and GM to Part-NCO) is amended as follows: ............. 30
4. Regulatory Impact Assessment (RIA)..................................................................... 31
4.1. Issues to be addressed .........................................................................................31
4.1.1. Safety risk assessment .................................................................................. 32
4.1.2. Who is affected? ........................................................................................... 32
4.1.3. How could the issue/problem evolve? .............................................................. 32
4.2. Objectives ...........................................................................................................33
4.3. Policy options ......................................................................................................33
4.3.1. Inconsistency in the use of the terms ‘Life Limited Parts’ and ‘Service Life Limited
Parts’ 33
4.3.2. Different interpretations as to which components require an EASA Form 1 or
equivalent, and which documents are considered equivalent to an EASA Form 1 ................ 33
4.3.3. Different interpretations of the need for ‘back to birth’ traceability ...................... 34
4.3.4. Inconsistency in 145.A.55 of the record-keeping periods and the periods applicable
to the transfer of records ............................................................................................ 34
4.3.5. Lack of guidance on the use of electronic signature ........................................... 34
4.3.6. Lack of guidance on the acceptability of record copies (scanned, photocopy) ........ 35
4.3.7. Lack of guidance on the acceptability of new technology, such as RFID (Radio
Frequency Identification) ............................................................................................ 35
4.3.8. Lack of harmonisation with the FAA requirements in relation to continuing
airworthiness records ................................................................................................. 35
4.3.9. Safety Recommendation ................................................................................ 35
4.4. Analysis of impacts...............................................................................................36
4.4.1. Inconsistency in the use of the terms ‘Life Limited Parts’ and ‘Service Life Limited
Parts’ 36
4.4.2. Different interpretations as to which components require an EASA Form 1 or
equivalent, and which documents are considered equivalent to an EASA Form 1 ................ 37
4.4.3. Different interpretations of the need for ‘back to birth’ traceability ...................... 38
4.4.4. Inconsistency in 145.A.55 of the record keeping periods and the periods applicable
to the transfer of records ............................................................................................ 39
4.4.5. Lack of guidance on the use of electronic signature ........................................... 39
4.4.6. Lack of guidance on the acceptability of records copies (scanned, photocopy)....... 39
4.4.7. Lack of guidance on the acceptability of new technology, such as RFID (Radio
Frequency Identification) ............................................................................................ 40

Table of contents
airworthiness records ................................................................................................. 41
4.5. Comparison and conclusion ...................................................................................42
4.5.1. Comparison of options ................................................................................... 42
5. References.............................................................................................................. 44
5.1. Affected regulations..............................................................................................44
5.2. Affected CS, AMC and GM......................................................................................44
5.3. Reference documents ...........................................................................................44

1. Procedural information
1. Procedural information
1.1. The rule development procedure
The European Aviation Safety Agency (hereinafter referred to as the ‘Agency’) developed
this Notice of Proposed Amendment (NPA) in line with Regulation (EC) No 216/20081
(hereinafter referred to as the ‘Basic Regulation’) and the Rulemaking Procedure2
.
This rulemaking activity is included in the Agency’s Rulemaking Programme 2014-2017
under RMT.0276 (former task number MDM.076).
The text of this NPA has been developed by the Agency based on the input of the
Rulemaking group RMT.0276 (MDM.076). It is hereby submitted for consultation of all
interested parties3
.
The process map on the title page contains the major milestones of this rulemaking
activity to date and provides an outlook of the timescale of the next steps.
1.2. The structure of this NPA and related documents
Chapter 1 of this NPA contains the procedural information related to this task. Chapter 2
(Explanatory Note) explains the core technical content. Chapter 3 contains the proposed
text for the new requirements. Chapter 4 contains the Regulatory Impact Assessment
showing which options were considered and what impacts were identified, thereby
providing the detailed justification for this NPA.
1.3. How to comment on this NPA
Please submit your comments using the automated Comment-Response Tool (CRT)
available at http://hub.easa.europa.eu/crt/4
.
The deadline for submission of comments is 7 May 2014.
1.4. The next steps in the procedure
Following the closing of the NPA public consultation period, the Agency will review all
comments and perform a focussed consultation which will consist of a workshop.
The outcome of the NPA public consultation will be reflected in the respective Comment-
Response Document (CRD).
1
Regulation (EC) No 216/2008 of the European Parliament and the Council of 20 February 2008 on common rules in the
field of civil aviation and establishing a European Aviation Safety Agency, and repealing Council Directive 91/670/EEC,
Regulation (EC) No 1592/2002 and Directive 2004/36/EC (OJ L 79, 19.3.2008, p. 1), as last amended by Commission
Regulation (EU) No 6/2013 of 8 January 2013 (OJ L 4, 9.1.2013, p. 34).
2
The Agency is bound to follow a structured rulemaking process as required by Article 52(1) of the Basic Regulation.
Such process has been adopted by the Agency’s Management Board and is referred to as the ‘Rulemaking Procedure’.
See Management Board Decision concerning the procedure to be applied by the Agency for the issuing of Opinions,
Certification Specifications and Guidance Material (Rulemaking Procedure), EASA MB Decision No 01-2012
of 13 March 2012.
3
In accordance with Article 52 of the Basic Regulation and Articles 5(3) and 6 of the Rulemaking Procedure.
4
In case of technical problems, please contact the CRT webmaster (crt@easa.europa.eu).

2. Explanatory Note
2. Explanatory Note
2.1. Overview of the issues to be addressed
Proposed by the Industry and the Member States, the need of a rulemaking task was
indeed found adequate to reduce the safety risk identified in relation to the aircraft’s
technical records.
In 2012 the Agency created a rulemaking group with the participation of experienced
members from industry and civil aviation authorities whose task was the development of
this Notice of Proposed Amendment (NPA).
For more detailed analysis of the issues addressed by this proposal, please refer to the RIA
section 4.1. ‘Issues to be addressed’ which are basically:
— Inconsistency in the use of the terms ‘Life Limited Parts’ and ‘Service Life Limited
Parts’;
— Different interpretations as to which components require an EASA Form 1 or
equivalent, and which documents are considered equivalent to an EASA Form 1;
— Different interpretations of the need for ‘back to birth’ traceability;
— Inconsistency in 145.A.55 of the record-keeping periods and the periods applicable to
the transfer of records;
— Lack of guidance on the use of electronic signature;
— Lack of guidance on the acceptability of records copies (scanned, photocopy);
— Lack of guidance on the acceptability of new technology, such as RFID (Radio
Frequency Identification);
— Lack of harmonisation with the FAA requirements in relation to continuing
airworthiness records.
Additionally, EASA intends to address a Safety Recommendation made by the AAIB (ref.:
UNKG-2007-091): ‘It is recommended that the European Aviation Safety Agency (EASA)
amend EASA Part-145 (and Part-M as necessary) to require that maintenance and overhaul
records that are referred to in airframe, engine and propeller log books, and component
record cards, are deemed to be part of that log book or record card and are retained until
the aircraft, engine, propeller or component has been destroyed or permanently removed
from service.’
2.2. Objectives
The overall objectives of the EASA system are defined in Article 2 of the Basic Regulation.
This proposal will contribute to the achievement of the overall objectives by addressing the
issues outlined in Section 4.1.
The specific objectives are to clarify the use of the current rules and to develop relevant
guidance on the use of new technologies for record-keeping in order to achieve safe and
cost-efficient rules.
2.3. Summary of the Regulatory Impact Assessment (RIA)
Chapter 4 contains the Regulatory Impact Assessment showing which options were
considered and what impacts were identified, with the following conclusion:

2. Explanatory Note
Parts’
The option that provides more benefits is the use of terms ‘time controlled
component’ and ‘life limited parts’ and clarify records requirements depending on the
type of component.
equivalent, and which documents are considered equivalent to an EASA Form 1
The option that provides more benefits is ‘Identify when the EASA Form 1 must be
retained’.
— Different interpretations of the need for ‘back to birth’ traceability
To solve this issue the assessment concludes that the term ‘in-service history’ must
be introduced. This term partially incorporates the concept of back to birth
traceability but keeping some records up to a certain extent defining ‘detailed
maintenance records’.
— Inconsistency in 145.A.55 of the record keeping periods and the periods applicable to
the transfer of records
The inconsistency is solved changing the applicable period to transfer of the records
from three to two years.
— Lack of guidance on the acceptability of records copies (scanned, photocopy)
The assessment concludes as the most benefitial option to create additional guidance
to accept records others than in ‘original paper’.
Frequency Identification)
It is not considered beneficial for the purpose of keeping records to change the rule,
so no guidance is added in the case of RFID.
— Safety Recommendation
After assessing the recommendation, it is not considered beneficial to change the
current rule.
2.4. Overview of the proposed amendments
This NPA:
— proposes a new structure of M.A.305,
— introduces new concepts related to components,
— clarifies the existing requirements of technical records related to continuing
airworthiness and maintenance, after assessing the need of each requirement,
— introduces guidance about IT systems and the use of new technologies and copies in
a way that can be tailored to the complexity of the aircraft/organisations,
— eliminates some inconsistencies, and

2. Explanatory Note
— additionally proposes a change in AMC to Part-CAT5
.
Some shortcomings of the current structure of M.A.305 have been identified and
improved:
— Current M.A.305 (b) and (d) quote respectively ‘records shall consist of’ and ‘records
shall contain’ while not making clear what the rest of the requirements are, if not
records. This lack of clarity is eliminated by including a single point stating what
records ‘shall contain’ and referring to the corresponding paragraphs.
— Additionally, the requirements for records at aircraft level are mixed with those
records at component level. The proposal separates both requirements.
— Lack of clarity with regard to what to keep when the aircraft or its components, as
appropriate, are permanently withdrawn from service. The proposal makes a
distinction between aircraft/components in service and those permanently withdrawn
from service.
M.A.305 (a) is amended for clarity purposes.
M.A.305 (b) is replaced to indicate what the aircraft continuing airworthiness records
system shall contain, cross-referencing other paragraphs. AMC M.A.305 (b) 1 provides
guidance in the case of engine modular design.
M.A.305 (c) is replaced to include the statuses and reports that are part of the aircraft
continuing airworthiness records. AMC M.A.305 (c) (1), (2) and (3) and GM M.A.305 (c)
(2) are added to explain what each status should include. The following means and
guidance are included related to the modification status:
— it should include components subjected to airworthiness limitations,
— it should be sufficiently detailed to identify any installed field loadable software,
— when a component is replaced by a fully interchangeable alternate component, it is
not considered a modification, and
— guidance material on examples of listings of components.
M.A.305 (d) is replaced to request the statuses specific to components. The terms ‘life
limited part’ and ‘time controlled component’ are introduced while the term ‘service life-
limited component’ is removed from the proposal. The current AMC MA305 (d) and AMC
M.A.305 (d) (4) and AMC M.A.305 (h) points are deleted and the new point GM M.A.305
(d)(2) is added. These points define ‘life limited part’, ‘time controlled component’, ‘current
status’, ‘in-service history record’ and include some guidance on different maintenance
processes (MSG-1, MSG-2 and MSG-3) to avoid confusion.
M.A.305 (e) is replaced to specify the documents and data to be kept and the retention
period. This point is divided into four paragraphs:
— Operator’s technical log system. The current M.A.306 (c) requirement is moved into
this paragraph, so M.A.306 (c) is deleted;
5
 Commission Regulation (EU) No 965/2012 of 5 October 2012 laying down technical requirements and
administrative procedures related to air operations pursuant to Regulation (EC) No 216/2008 of the
European Parliament and of the Council as last amended by Commission Regulation (EU) No 800/2013 of
14 August 2013.

2. Explanatory Note
— General data: specific information on what to keep depending on the requirement at
aircraft level (AD, modifications and repairs and scheduled maintenance or other
maintenance required for continuing airworthiness);
— Data specific to certain components, which introduces the new term ‘in-service
history record’ for life limited parts; and
— Retention periods for data and documents when the aircraft and its components have
been permanently withdrawn from service.
AMC M.A.305 (e) is added to provide means to comply with:
— how the person or organisation responsible for the aircraft continuing airworthiness
can use the system to record the aircraft continuing airworthiness data and the main
features if the system used is IT based (record making),
— the content of logbook/logcard,
— different forms of record keeping (paper, electronically digitised copy, etc.) and the
main characteristics for digitised records,
— the main characteristics of systems used for retention of digitised records, giving the
possibility of disposal of the original paper records when the competent authority has
approved such systems, and
— lost or destroyed records.
AMC M.A.305 (e) (2) is added to provide guidance on what to keep under modifications,
repairs and ADs.
AMC M.A.305 (e) (3) provides means in the case of missing records.
GM M.A.305 (e) (3) is added to clarify that it is not requested to retain EASA Form 1 for
certain components.
A new AMC M.A.305 (f) details the case where the owner/operator arranges for a
maintenance organisation to retain the aircraft continuing airworthiness records.
M.A.305 (g) is amended for clarity.
M.A.305 (h) is deleted.
AMC M.A.305 (h) and AMC M.A.305 (h) (6) are deleted.
A new GM M.A.305 is added to provide the definitions of the terms used through M.A.305.
M.A. 503, M.A.504 (c), AMC M.A.501 (b), AMC M.A.504 (c) and AMC M.A.504 (d) (2) are
amended for consistency.
AMC M.A.613 (a) is amended for consistency.
Point M.A.614 (b) is amended to clarify what the maintenance organisation must transfer
to the owner/operator so that the latter can demonstrate compliance with Part-M
requirements on the ‘detailed maintenance records’.
M.A.710 and Appendix II to M.A.201 (h)1 are amended for consistency.
AMC M.A.710 (a), AMC M.A.901 (d) and (g), AMC M.A.904 (a)(2), AMC M.A.904 (b),
Appendix XI to AMC M.A.708 (c) and Appendix III to GM 1 M.B.303 (b) are amended for
consistency.

2. Explanatory Note
145.A.55 (b) and (c) are amended to clarify what the maintenance organisation must
transfer to the owner/operator so that the latter can demonstrate compliance with Part-M
requirements on the ‘detailed maintenance records’. Additionally Part-145 is amended to
be consistent with the different retention periods of records mentioned in the point.
AMC No2 to 145.A.50 (d) and GM 145.A.55 (a) are amended for consistency.
Points AMC1 CAT.IDE.A.105, AMC1 CAT.IDE.H.105 are added to Part-CAT in order to
provide operators with a means to comply with the responsibility regarding the availability
of the components required for the intended operation that are not controlled for the
purpose of continuing airworthiness management. The same logic applies for the new
points AMC1 NCC.IDE.A.105 and AMC1 NCC.IDE.H.105 to Part-NCC and AMC1
NCO.IDE.A.105 and AMC1 NCO.IDE.H.105 to Part-NCO.

3. Proposed amendments
The text of the amendment is arranged to show deleted text, new or amended text as
shown below:
(a) deleted text is marked with strike through;
(b) new or amended text is highlighted in grey bold;
(c) an ellipsis (…) indicates that the remaining text is unchanged in front of or following
the reflected amendment.
3.1. Draft Regulation (Draft EASA Opinion)
3.1.1. Annex I to Commission Regulation (EC) No 2042/2003 (Part-M)
Point M.A.305(a) is amended as follows:
M.A.305 Aircraft continuing airworthiness record system
(a) At the completion of any maintenance, the certificate of release to service required
by point M.A.801 or point 145.A.50 shall be entered included in the aircraft
continuing airworthiness records. Each entry shall be made as soon as practicable but
in no case more than 30 days after the day of the maintenance action.
Point M.A.305(b) is replaced as follows:
(b) The aircraft continuing airworthiness records shall consist of:
1. an aircraft logbook, engine logbook(s) or engine module log cards, propeller
logbook(s) and log cards, for any service life limited component as appropriate, and
2. when required in point M.A.306 for commercial air transport or by the Member State
for commercial operations other than commercial air transport, the operator’s
technical log.
(b) The aircraft continuing airworthiness records shall contain the following:
1. a record of the date, total in-service life accumulated in flight hours
and/or flight cycles and/or landings and/or any other applicable
parameter, for the aircraft, engine(s) and/or propeller(s) after each
flight;
2. the data described in (c) and (d) together with the supporting detailed
maintenance records described in (e); and
3. when required in point M.A.306 for commercial air transport or by the
Member State for commercial operations other than commercial air
transport, the operator’s technical log.
Point M.A.305(c) is replaced as follows:
(c) The aircraft type and registration mark, the date, together with total flight time and/ or
flight cycles and/or landings, as appropriate, shall be entered in the aircraft logbooks.
(c) The aircraft continuing airworthiness records shall include the current:

1. status of airworthiness directives and measures mandated by the
competent authority in immediate reaction to a safety problem;
2. status of modifications and repairs;
3. status of compliance with the aircraft maintenance programme;
4. mass and balance report; and
5. status of deferred maintenance tasks and deferred defects rectification.
Point M.A.305(d) is replaced as follows:
(d) The aircraft continuing airworthiness records shall contain the current:
1. status of airworthiness directives and measures mandated by the competent
authority in immediate reaction to a safety problem;
2. status of modifications and repairs;
3. status of compliance with maintenance programme;
4. status of service life limited components;
5. mass and balance report;
6. list of deferred maintenance.
(d) The aircraft continuing airworthiness records shall include the following
additional information specific to components:
1. current status of life limited parts including the life accumulated by
each affected part in relation to the applicable airworthiness limitation
parameter; and
2. current status of time controlled components, including the life
accumulated by the affected components in the applicable parameter,
since the last accomplishment of scheduled maintenance specified in
the aircraft maintenance programme.
Point M.A.305(e) is replaced as follows:
(e) In addition to the authorised release document, EASA Form 1 or equivalent, the
following information relevant to any component installed (engine, propeller, engine
module or service life-limited component) shall be entered in the appropriate engine
or propeller logbook, engine module or service life limited component log card:
1. identification of the component; and
2. the type, serial number and registration, as appropriate, of the aircraft, engine,
propeller, engine module or service life-limited component to which the particular
component has been fitted, along with the reference to the installation and removal
of the component; and
3. the date together with the component’s accumulated total flight time and/or flight
cycles and/or landings and/or calendar time, as appropriate; and
4. the current paragraph (d) information applicable to the component.
(e) The owner or operator shall ensure that a system has been established to
keep the following documents and data for the periods specified in a form
acceptable to the competent authority:
1. Operator’s technical log system: the technical log or data equivalent in
scope and detail contained in the information technology system
corresponding to the 36 months prior to the last entry shall be
retained.

2. General data:
(i) the certificate of release to service and detailed maintenance
records demonstrating compliance with airworthiness directives
and measures mandated by the competent authority in immediate
reaction to a safety problem applicable to the aircraft, engine(s),
propeller(s) and components fitted thereto, as appropriate, until
such time as the information contained therein is superseded by
new information equivalent in scope and detail but not less than
24 months;
(ii) the certificate of release to service and detailed maintenance
records demonstrating compliance with the applicable data in
accordance with M.A.304 for current modifications and repairs to
the aircraft, engine(s), propeller(s) and any component subject to
airworthiness limitations; and
(iii) the certificate of release to service and detailed maintenance
records of all scheduled maintenance or other maintenance
required for continuing airworthiness in respect of the aircraft,
engine(s), propeller(s), as appropriate, until such time as the
information contained therein is superseded by new information
equivalent in scope and detail but not less than 24 months;
3. Data specific to certain components:
(i) an in-service history record for each life limited part from which
the current status of compliance with airworthiness limitations
can be determined;
(ii) the certificate of release to service and detailed maintenance
records for the last accomplishment of any scheduled
maintenance, and any subsequent unscheduled maintenance, on
all life limited parts and time controlled components until the
scheduled maintenance has been superseded by another
scheduled maintenance of equivalent scope and detail but not less
than 24 months;
4. Retention periods when the aircraft is permanently withdrawn from
service:
(i) the data required in M.A.305(b)1 in respect of the aircraft,
engine(s), and propeller(s) shall be retained at least 24 months;
(ii) the last effective status and reports identified in M.A.305(c) and
(d) shall be retained for at least 24 months;
(iii) the most recent certificate of release to service and detailed
maintenance records identified in M.A.305(e)2 and (e) 3 shall be
retained for not less than 24 months.
Point M.A.305(g) is amended as follows:
(g) All entries made in the aircraft continuing airworthiness records system shall be
clear and accurate. When it is necessary to correct an entry, the correction shall be
made in a manner that clearly shows the original entry.

Point M.A.305(h) is deleted
(h) An owner or operator shall ensure that a system has been established to keep the
following records for the periods specified:
1. all detailed maintenance records in respect of the aircraft and any service life limited
component fitted thereto, until such time as the information contained therein is
superseded by new information equivalent in scope and detail but not less than 36
months after the aircraft or component has been released to service; and
2. the total time in service (hours, calendar time, cycles and landings) of the aircraft
and all service life-limited components, at least 12 months after the aircraft or
component has been permanently withdrawn from service; and
3. the time in service (hours, calendar time, cycles and landings) as appropriate, since
last scheduled maintenance of the component subjected to a service life limit, at
least until the component scheduled maintenance has been superseded by another
scheduled maintenance of equivalent work scope and detail; and
4. the current status of compliance with maintenance programme such that compliance
with the approved aircraft maintenance programme can be established, at least until
the aircraft or component scheduled maintenance has been superseded by other
scheduled maintenance of equivalent work scope and detail; and
5. the current status of airworthiness directives applicable to the aircraft and
components, at least 12 months after the aircraft or component has been
permanently withdrawn from service; and
6. details of current modifications and repairs to the aircraft, engine(s), propeller(s) and
any other component vital to flight safety, at least 12 months after they have been
permanently withdrawn from service.
Point M.A.306(c) is deleted as follows:
M.A.306 Operator’s technical log system
(c) An operator shall ensure that the aircraft technical log is retained for 36 months after
the date of the last entry.
Point M.A.503 is amended as follows:
M.A.503 Life limited parts and time controlled components Service life limited
components
(a) Installed service life limited life limited parts and time controlled components
shall not exceed the approved service life limit as specified in the approved
maintenance programme and airworthiness directives, except as provided for in point
M.A.504(c).
(b) The approved limitservice life is expressed in calendar time, flight hours, landings or
cycles, as appropriate.
(c) At the end the approved limit service life, the component must be removed from the
aircraft for maintenance, or for disposal in the case of life limited partscomponents
with a certified life limit.

Point M.A.504(c) is amended as follows:
M.A.504 Control of unserviceable components
(c) Components which have reached their certified mandatory life limit limitation or
contain a non-repairable defect shall be classified as unsalvageable and shall not be
permitted to re-enter the component supply system, unless the certified mandatory
life limits limitation has have been extended or a repair solution has been approved
according to M.A.304.
M.A.614 Maintenance records
(b) The approved maintenance organisation shall provide a copy of each certificate of
release to service to the aircraft owner, together with a copy of any specific
repair/modification data used for repairs/modifications carried out.
(b) The approved maintenance organisation shall provide a copy of each
certificate of release to service to the aircraft owner, together with a copy of
any detailed maintenance records associated with the work carried out and
necessary to demonstrate compliance with M.A.305.
M.A.710 Airworthiness review
(a) To satisfy the requirement for the airworthiness review of an aircraft referred to in
point M.A.901, a full documented review of the aircraft records shall be carried out by
the approved continuing airworthiness management organisation in order to be
satisfied that:
(…)
7. all service life limited life limited parts and time controlled components
installed on the aircraft are properly identified, registered and have not
exceeded their approved service life limit; and
Appendix II to M.A.201(h)1 is amended as follows:
Appendix II to M.A.201(h)(1): Sub-contracting of continuing airworthiness
management tasks
(…)
2.11 Service life limit Mandatory life limitation or scheduled maintenance controls &
component control/removal forecast.
(…)
2.15 Continuing airworthiness records
These may be maintained and kept by the sub-contracted organisation on behalf of
the operator who remains the owner of these documents. However, the operator
should be provided with the current status of AD compliance and service life limited
life limited parts and time controlled components in accordance with agreed
procedures. The operator should also be provided with unrestricted and timely access
to original records as and when needed. On-line access to the appropriate
information systems is acceptable.

3.1.2. Annex II to Commission Regulation (EC) No 2042/2003 (Part-145)
Point 145.A.55 is amended as follows:
145.A.55 Maintenance records
(b) The organisation shall provide a copy of each certificate of release to service to the
aircraft operator, together with a copy of any specific repair/modification data used
for repairs/modifications carried out.
(b) The organisation shall provide a copy of each certificate of release to service
to the aircraft operator, together with a copy of any detailed maintenance
record associated with the work carried out and necessary to demonstrate
compliance with M.A.305.
(c) The organisation shall retain a copy of all detailed maintenance records and any
associated maintenance data for three two years from the date the aircraft or
component to which the work relates was released from the organisation.
3.2. Draft Acceptable Means of Compliance and Guidance Material
(Draft EASA Decision)
3.2.1. Annex I to Decision 2003/19/RM (AMC to Part-M) is amended as follows:
Point GM M.A.305 is added
GM M.A.305 Aircraft continuing airworthiness record system
(1) ‘Applicable airworthiness limitation parameter’ and ‘applicable parameter’
mean ‘in flight hours’ and/or ‘flight cycles’ and/or ‘landings’ and/or
‘calendar time’, as appropriate.
(2) A ‘life limited part’ is a part for which the maintenance schedule of the
aircraft maintenance programme requires the permanent removal from
service when, or before, the specified mandatory life limitation in the
applicable parameter is reached.
(3) The ‘current status of life limited parts’ should indicate, for each affected
part, the life limitation, total number of accumulated flight hours and/or
flight cycles and/or calendar time and/or life in any other applicable
parameter (as appropriate) and the remaining life in flight hours and/or
flight cycles and/or calendar time and/or any other applicable parameter
before the life limitation is reached.
(4) The term ‘time controlled components’ embraces any component for which
the maintenance schedule of the aircraft maintenance programme requires
periodically the removal for restoration, the replacement, or the quantitative
inspection of component’s performance.
(5) The ‘current status of time controlled components’ means the current status
of compliance with the required periodic maintenance task(s) from the
maintenance schedule of the aircraft maintenance programme specific to the
time controlled components. It should include the life accumulated by the
affected components, the applicable parameter, as appropriate, since the
last accomplishment of scheduled maintenance specified in the maintenance
schedule of the aircraft maintenance programme. Any action that alters the

periodicity of the maintenance task(s) or changes the parameter of this
periodicity should be recorded.
(6) ‘Detailed maintenance records’ are those records required to be kept by the
owner/operator to be able to determine the continuing airworthiness and
configuration of the aircraft in accordance with Part-M relevant for future
maintenance. These are different from the detailed maintenance records
required to be kept by a maintenance organisation as per M.A.614 or
145.A.55(c). Whereas maintenance organisations are required to retain all
detailed records to demonstrate that they worked in compliance with their
respective requirements, aircraft owners/operators need to retain those
records required for assessing the aircraft configuration and the
airworthiness of the aircraft and all components installed. ‘Dirty finger
prints’ may not need to be transferred from the maintenance organisation to
the aircraft owner/operator.
Where the maintenance organisation retains the detailed maintenance
records in accordance with 145.A.55(c) and M.A.614, the owner/operator
should receive the aircraft release to service performed during the
maintenance and necessary to determine the aircraft continuing
airworthiness and its configuration, which includes references to all:
— taskcards,
— modifications,
— airworthiness directives,
— repaired and non-repaired damage, and
— measurements relating to defects.
(7) An airworthiness limitation is a boundary beyond which an aircraft or a
component thereof must not be operated, unless the instruction(s)
associated to this airworthiness limitation is (are) complied with.
(8) ‘Other maintenance required for continuing airworthiness’ means other
maintenance due to abnormal conditions or events with an impact on the
continuing airworthiness of the aircraft at the time of its return to service. It
is not intended to request every single condition described in the
maintenance data, i.e. Aircraft Maintenance Manual chapter 5, but just the
ones that cannot be captured by other means, for example when those are
included in the records for repairs. Some abnormal conditions that could be
kept under this requirement could be lightning strikes, hard landings, long
term storage, propeller or rotor over-speed, over-torque, impact on a main
rotor blade, etc.
(9) The term ‘in-service history records’ embraces records from which the
current status of life limited parts can be determined.
Such records document each time a life limited part is placed in service or
removed from service. They should clearly:
(i) identify the part by its part number and serial number,
(ii) show the date of installation and removal (i.e. date on/date off),
(iii) show the details of the installation and removal (i.e. type, serial
number, weight variant, thrust rating, as appropriate, of the aircraft,
engine, engine module, or propeller) at installation and removal of the
part that are necessary to appropriately control the life limitation.

(iv) show the total in-service life accumulated in flight hours and/or flight
cycles and/or landings and/or calendar time and/or any other
applicable parameter, as appropriate, corresponding to the dates of
installation and removal of the part.
Any other events that would affect the life limitation, such as a modification
(in accordance with airworthiness directives, service bulletins or any
product improvements) that affects the life limitation or changes the
limitation parameter, must also be included in the in-service history record.
Not all modifications would necessarily be pertinent to the life limitation of
the component.
Point AMC M.A.305(b)1 is added as follows:
Some gas turbine engines are assembled from modules and the total life
accumulated in service for the complete engine may not be kept. When owners
and operators wish to take advantage of the modular design, then the total life
accumulated in service for each module, and maintenance records for each
module, should be maintained. The continuing airworthiness records as specified
should be kept with the module and should show compliance with any mandatory
requirements pertaining to that module.
Point AMC M.A.305(c)1 is added as follows:
AMC M.A.305(c)1 Aircraft continuing airworthiness record system
(a) The current status of ADs, and measures mandated by the competent
authority in immediate reaction to a safety problem, should identify the
product/component, the applicable ADs including revision or amendment
numbers and the date on which the status was updated.
If the AD is generally applicable to the aircraft or component type but is not
applicable to the particular aircraft, engine, propeller or component, then
this should be identified with the reason why it is not applicable.
The AD status should include the release to service date on which the AD or
measure was accomplished, and where the AD or measure is controlled by
flight hours and/or flight cycles and/or landings and/or any other
applicable parameter, as appropriate, it should include the corresponding
total life accumulated in service on the date when the AD or measure was
accomplished. For repetitive ADs or measures, only the dates of the last and
next application should be recorded in the current status. The status should
also specify the method of compliance and which part of a multi-part AD or
measure has been accomplished, where a choice is available in the AD or
measure.
When the AD is multi-part or requests assessments of certain inspections,
this information should be shown as well.
(a) Status of current modifications and repairs means a list of modifications and
repairs embodied on the aircraft. It should include the identification of the
aircraft, engine(s) or propeller(s), as appropriate, and when the
modification or repair was accomplished. Where a modification or repair

creates the need for the accomplishment of repetitive maintenance tasks,
the reference to the applicable tasks of the aircraft maintenance programme
should be added. The status should include the reference to the data in
accordance with M.A.304 that provides the accomplishment procedure for
the modification or repair. It should also specify which part of a multi-part
modification or repair has been accomplished and the method of compliance,
where a choice is available in the data.
(b) The data may include:
(1) installation instructions;
(2) mass and balance change data;
(3) maintenance and repair manual supplements;
(4) maintenance programme changes and instructions for continuing
airworthiness; and/or
(5) aircraft flight manual supplements.
(c) The status of modifications should be sufficiently detailed to identify any
installed field loadable software which is used for operating or controlling
the aircraft.
A field loadable software can be loaded without removal of the equipment
from the aircraft or engine. Other types of field loadable software not used
for operating or controlling, as navigational data bases or entertainment
systems, are not considered under this recording requirement.
(d) For the purpose of recording modifications in accordance with the current
paragraph, a component replaced by a fully interchangeable alternate
component is not considered a modification, if this condition is published by
the design approval holder (DAH).
(e) It is not expected to have the status of modifications and repairs per each
component. This status should include engine(s), propeller(s) and
components subjected to airworthiness limitations, and it is not intended
that it should be retained for other components.
Point GM M.A.305(c)2 is added as follows:
GM M.A.305(c)2 Aircraft continuing airworthiness record system
The status of modifications embodied could include:
(a) List of the installed components
(b) List of other modifications not covered by the previous point.
When aircraft require a specific field loadable software configuration to operate
correctly, a specific listing with this information may be necessary too.
(a) The current status of compliance with the aircraft maintenance programme
means the last and next accomplishment data for the scheduled tasks
specified in the aircraft maintenance programme. Accomplishment data
pertinent to the engine, propeller or component should be stated when a
task is controlled at the engine, propeller, or component level.

(b) Where the task is controlled by flight hours and/or flight cycles and/or
landings and/or calendar time and/or any other applicable parameter, the
total in-service life accumulated by the aircraft, engine, propeller or
component (as appropriate) in the suitable parameter(s) should also be
included. For repetitive tasks, only the date of the last and next applications
should be recorded, as well as the terminating action when it is performed.
Point AMC M.A.305(d) is deleted as follows:
The current status of AD should identify the applicable AD including revision or
amendment numbers. Where an AD is generally applicable to the aircraft or
component type but is not applicable to the particular aircraft or component, then
this should be identified. The AD status includes the date when the AD was
accomplished, and where the AD is controlled by flight hours or flight cycles it should
include the aircraft or engine or component total flight hours or cycles, as
appropriate. For repetitive ADs, only the last application should be recorded in the AD
status. The status should also specify which part of a multi-part directive has been
accomplished and the method, where a choice is available in the AD.
The status of current modification and repairs means a list of embodied modification
and repairs together with the substantiating data supporting compliance with the
airworthiness requirements. This can be in the form of a Supplemental Type
Certificate (STC), SB, Structural Repair Manual (SRM) or similar approved document.
The substantiating data may include:
(a) compliance programme; and
(b) master drawing or drawing list, production drawings, and installation instructions;
and
(c) engineering reports (static strength, fatigue, damage tolerance, fault analysis,
etc.); and
(d) ground and flight test programme and results; and
(e) mass and balance change data; and
(f) maintenance and repair manual supplements; and
(g) maintenance programme changes and instructions for continuing airworthiness;
and
(h) aircraft flight manual supplement.
Some gas turbine engines are assembled from modules and a true total time in
service for a total engine is not kept. When owners and operators wish to take
advantage of the modular design, then total time in service and maintenance records
for each module is to be maintained. The continuing airworthiness records as
specified are to be kept with the module and should show compliance with any
mandatory requirements pertaining to that module
Point AMC M.A.305(d)(4) and AMC M.A.305(h) is deleted
AMC M.A.305 (d) (4) and AMC M.A.305 (h) Aircraft continuing airworthiness
record system
The term ‘service life-limited components’ embraces: (i) components subject to a
certified life limit after which the components should be retired, and (ii) components

subject to a service life limit after which the components should undergo
maintenance to restore their serviceability.
The current status of service life-limited aircraft components should indicate:
i. for components subject to a certified life limit: the component life
limitation, total number of hours, accumulated cycles or calendar time and
the number of hours/cycles/time remaining before the required retirement
time of the component is reached;
ii. for components subject to a service life limit: the component service life
limit, the hours, cycles or calendar time since the component has been
restored back to their service life and the remaining service (hours,
cycles, calendar time) life before the components need to undergo
maintenance.
Any action that alters the components’ life limit (certified or service) or
changes the parameter of the life limit (certified or service) should be
recorded.
When the determination of the remaining life requires knowledge of the
different types of aircraft/engine on which the component has previously
been installed, the status of all service-life limited aircraft components
should additionally include a full installation history indicating the number
of hours, cycles or calendar time relevant to each installation on these
different types of aircraft/engine. The indication of the type of
aircraft/engine should be sufficiently detailed with regard to the required
determination of remaining life.
Recommendations from the type certificate holder on the procedures to
record the remaining life may be considered.
Point GM M.A.305(d)(2) is added as follows:
GM M.A.305(d)(2) Aircraft continuing airworthiness record system
The maintenance schedule of the aircraft maintenance programme may require:
(a) the removal of a component for periodic restoration to return the component
to a specified standard (e.g. removal of landing gear for overhaul);
(b) the periodic replacement of a component by a new one when it is not
possible to restore the item to a specific standard of failure resistance (e.g.
discarding of filters, batteries, discharge cartridges of fire extinguishers,
etc.);
(c) a quantitative inspection to confirm periodically that a component meets
specified performance standards (e.g. functional check of aileron hinge
bearings for excessive play, functional check of emergency exit locking
mechanism, etc.). The component is left in service (no further maintenance
action taken) on the condition that it continues to fulfil its intended purpose
within specified performance limits until next scheduled inspection.
Components subject to the above maintenance schedule requirements are
termed ‘time controlled components’.
Note: The maintenance in accordance:
— with (a) and (b) assumes a predictable deterioration of the component: the
overall reliability invariably decreases with age; and
— with (c) assumes a gradual deterioration of the component: failure
resistance can reduce and drop below a defined level.

For aircraft maintenance programmes developed under a primary maintenance
process oriented methodology (e.g. Maintenance Steering Group-1 (MSG-1) or
MSG-2), the term ‘time controlled component’ applies to ‘Hard Time’ components
and ‘On-Condition’ components. Such terms mean:
(1) Hard Time
This is a preventative process in which known deterioration of a component
is limited to an acceptable level by the maintenance actions which are
carried out at periods related to time in service (e.g. calendar time, number
of cycles, number of landings). The prescribed actions return the component
to its original condition.
(2) On-Condition
It is a preventive process in which the component is inspected or tested, at
specified periods, to an appropriate standard in order to determine whether
it can continue in service. The purpose is to remove the component before
its failure in service.
Note: Components which are not time controlled are instead subject to
Condition-Monitoring. These components are permitted to remain in service
without preventive maintenance until a functional failure occurs (i.e. they
are ‘fly-to failure’).
Point AMC M.A.305 (e) is added as follows:
AMC M.A.305(e) Aircraft continuing airworthiness record system
(a) The information that constitutes the aircraft continuing airworthiness
records may be entered in an information technology (IT) system and/or
other documents equivalent in scope and detail.
IT systems acceptable for supporting the aircraft continuing airworthiness
records should:
(1) include functions so that search of data and production of status is
possible;
(2) allow a transfer of the aircraft continuing airworthiness records data
from one system to another using an industry wide/worldwide data
format or allow printing information;
(3) contain safeguards which prevent unauthorised personnel from altering
data; and
(4) ensure the integrity of the data, including traceability of amendments.
(b) ‘Other document equivalent in scope and detail’ could be an aircraft logbook,
engine logbook(s) or engine module log cards, propeller logbook(s) and log
cards for life limited parts and time controlled components.
Any logbook/logcard should contain:
(1) Identification of the product, part or component it refers to;
(2) Type, serial number and registration, as appropriate, of the aircraft,
engine, propeller, engine module, or component to which the particular
component has been fitted, along with the reference to the installation
and removal;
(3) The date and accumulated total flight time and/or flight cycles and/or
landings and/or calendar time, as appropriate; and

(4) Any AD, modification, repair, maintenance or deferred maintenance
tasks applicable.
If fulfilling the applicable requirements, a logbook/log card as described
above could be a means to comply with the current status of life limited
parts and time controlled components and/or the in-service history record
for each life limited part.
(c) Form of record keeping:
Keeping continuing airworthiness records in a form acceptable to the
competent authority normally means in one of the following formats:
(1) as the original form (either paper or via an approved electronically
signed form)
(2) as an electronically digitised copy of the original paper form, or
(3) as a microfilm or scanned copy of the original form, or
(4) as a paper form where the paper record is a printed reproduction of an
original form from either (1), (2) or (3) above.
Where IT systems are used to retain documents and data, it should be
possible to print a paper version of the documents and data kept.
(d) Non-digitised records:
All physical records should remain legible throughout the required retention
period. Physical records on either paper or microfilm systems should use
robust material, which can withstand normal handling, filing and ageing.
They should be stored in a safe way with regard to damage, alteration and
theft.
(e) Digitised Record:
Digitised records may be created from an original paper record or as a
digital electronic original.
When created from an original paper record:
(1) the creation date of the digitised record should be stored with the
digitised record,
(2) it is advisable to create an individual digitised record for each original,
and
(3) if an organisation creates a large number of digitised records, the use
of database technology should ease the future retrieval of the record.
(f) Digitised Record Retention:
Digitised records when created from an original paper record, or as a digital
electronic original, should be stored on a system which is secured and kept
in an environment protected from damage (e.g. fire, flooding, excessive
temperature or accidental erasing). IT systems should have at least one
backup system, which should be updated at least within 24 hours of any
entry in the primary system. Access to both primary and backup systems is
required to be protected against the ability of unauthorised personnel to
alter the database and they should preferably be located remotely from the
main system.
The system used for retention of digitised records must:

1. Ensure the integrity and accuracy of the record (when created from an
original paper record).
2. Ensure that access to the digitised record has safeguards against
alteration of the data.
3. Provide assurance that the data has not been modified after creation.
4. Be capable of retrieval of individual records within a reasonable time
period.
5. Be maintained against technological obsolescence which would prevent
printing, displaying or retrieval of the digitised records.
Computer backup discs, tapes etc., should be stored in a different location
from that containing the current working discs, tapes, etc., and in a safe
environment.
Where the competent authority has approved a system for digitised record
keeping satisfying the above, the original paper record may be permanently
disposed of.
(g) Lost or destroyed records:
Reconstruction of lost or destroyed records can be done by reference to
other records which reflect the time in service, research of records
maintained by maintenance organisations and reference to records
maintained by individual mechanics, etc. When reconstruction has been
done and the record is still incomplete, the owner/operator may make a
statement in the new record describing the loss and establishing the time in
service based on the research and the best estimate of time in service. The
reconstructed records should be submitted to the competent authority for
acceptance. The competent authority may require the performance of
additional maintenance if not satisfied with the reconstructed records.
Point AMC M.A.305(e)(2) is added as follows:
AMC M.A.305(e)(2) Aircraft continuing airworthiness record system
(1) EASA Form 1 and the Certificate of Conformity of the components used to
perform a modification/repair are not part of the substantiation data for a
modification/repair, which are retained by the maintenance organisation.
(2) In the case of an AD with several steps or with interim assessments during
its application, these intermediate steps are part of the detailed
maintenance records.
Point AMC M.A.305(e)(3) is added as follows:
AMC M.A.305 (e)(3) Aircraft continuing airworthiness record system
(1) An EASA Form 1 and detailed maintenance records are not meant to support
every installation/removal shown in the in-service history records.
(2) Conservative methods to manage missing historical periods are acceptable
to establish the current status of the life limited part. In case of use of a
conservative method, the supporting documents should be endorsed.
Recommendations from the DAH on the procedures to record or reconstruct
the in-service history should be considered.

Point GM M.A.305(e)(3) is added as follows:
GM M.A.305(e)(3) Aircraft continuing airworthiness record system
The EASA Form 1 or equivalent is not requested to be kept for ‘condition
monitoring’ components unless this is the means to fulfil another requirement
quoted in M.A.305, (e.g. maintenance programme task compliance).
Point AMC M.A.305(f) is added as follows:
AMC M.A.305(f) Aircraft continuing airworthiness record system
When an owner/operator arranges for the relevant maintenance organisation to
retain copies of the continuing airworthiness records on its behalf, the
owner/operator will continue to be responsible for the retention of records. If
they cease to be the owner/operator of the aircraft, they also remain responsible
for transferring the records to the new owner/operator of the aircraft.
Point AMC M.A.305(h) is deleted
AMC M.A.305(h) Aircraft continuing airworthiness record system
When an owner/CAMO arranges for the relevant maintenance organisation to retain copies
of the continuing airworthiness records on their behalf, the owner/CAMO will continue to be
responsible for the retention of records. If they cease to be the owner/CAMO of the
aircraft, they also remain responsible for transferring the records to any other person who
becomes the owner/CAMO of the aircraft.
Keeping continuing airworthiness records in a form acceptable to the competent authority
normally means in paper form or on a computer database or a combination of both
methods. Records stored in microfilm or optical disc form are also acceptable. All records
should remain legible throughout the required retention period.
Paper systems should use robust material, which can withstand normal handling and filing.
Computer systems should have at least one backup system, which should be updated at
least within 24 hours of any maintenance. Each terminal is required to contain programme
safeguards against the ability of unauthorised personnel to alter the database.
Continuing airworthiness records should be stored in a safe way with regard to damage,
alteration and theft. Computer backup discs, tapes etc., should be stored in a different
location from that containing the current working discs, tapes, etc., and in a safe
environment. Reconstruction of lost or destroyed records can be done by reference to
other records which reflect the time in service, research of records maintained by repair
facilities and reference to records maintained by individual mechanics, etc. When these
things have been done and the record is still incomplete, the owner/CAMO may make a
statement in the new record describing the loss and establishing the time in service based
on the research and the best estimate of time in service. The reconstructed records should
be submitted to the competent authority for acceptance. The competent authority may
require the performance of additional maintenance if not satisfied with the reconstructed
records.
Point AMC M.A.305(h)(6) is deleted
AMC M.A.305(h)6- Aircraft continuing airworthiness record system
For the purpose of this paragraph, a ‘component vital to flight safety’ means a component
that includes certified life limited parts or is subject to airworthiness limitations or a major
component such as, undercarriage or flight controls.

Point AMC M.A.501(b) is modified as follows:
AMC M.A.501(b) Installation
(3) The person referred to under M.A.801 or the M.A. Subpart F or Part-145 approved
maintenance organisation should be satisfied that the component in question meets
the approved data/ standard, such as the required design and modification
standards. This may be accomplished by reference to the (S)TC holder or
manufacturer’s parts catalogue or other approved data (i.e. Service Bulletin). Care
should also be taken in ensuring compliance with applicable AD and the status of any
service life-limited life limited parts and time controlled components fitted to the
aircraft component.
Point AMC M.A.504(c) is amended as follows:
AMC M.A.504(c) Control of unserviceable components – unsalvageable
components
1. The following types of components should typically be classified as unsalvageable:
(…)
(d) certified life-limited parts life limited parts that have reached or exceeded
their certified life limits specified mandatory life, or have missing or
incomplete records;
Point AMC M.A.504(d)(2) is amended as follows:
AMC M.A.504(d)(2) Control of unserviceable components
4. Since manufacturers producing approved aircraft components should maintain
records of serial numbers for ‘retired’ life limited parts certified life-limited or other
critical components, the organisation that mutilates a component should provide the
original manufacturer with the data plate and/or serial number and final disposition
of the component.
Point AMC M.A.613(a) is modified as follows:
AMC M.A.613(a) Component certificate of release to service
2.4. An EASA Form 1 issued in accordance with this paragraph 2 should be issued by
signing in block 14b and stating ‘Inspected’ in block 11. In addition, block 12 should
specify:
(…)
2.4.4. detail of life used for service life-limited life limited parts and time controlled
components being any combination of fatigue, overhaul or storage life;
2.6.Used aircraft components removed from a serviceable aircraft.
(…)
(g) The flight hours/cycles/landings as applicable of any service life-limited life
limited parts and time controlled components including time since overhaul
should be established.
2.8. Used aircraft components maintained by organisations not approved in accordance
with M.A Subpart F or Part-145.
(…)
(b) replacing of all service life-limited components life limited parts and time
controlled components when no satisfactory evidence of life used is available
and/or the components are in an unsatisfactory condition,

Point AMC M.A.710(a) is modified as follows:
AMC M.A.710(a) Airworthiness review
(1) A full documented review is a check of at least the following categories of
documents:
- list of service life-limited component life limited parts and time controlled
components
Points AMC M.A.901(d) and (g) are amended as follows:
AMC M.A.901(d) and (g) Aircraft airworthiness review
(g) Statement
(…)
- component service life limitations, and;
Point AMC M.A.904(a)(2) is amended as follows:
AMC M.A.904(a)(2) Airworthiness reviews of aircraft imported into the EU
2. In determining the work to be undertaken during the airworthiness review on the
aircraft, the following should be taken into consideration:
(…)
(d) the aircraft continuing airworthiness status such as the aircraft and component
AD status, the SB status, the maintenance status, the status of life limited
parts and time controlled components all service life limited components,
weight and centre of gravity schedule including equipment list;
Point AMC M.A.904(b) is amended as follows:
AMC M.A.904(b) Airworthiness review of aircraft imported into the EU
(c) Documents accompanying the recommendation
(…)
- status of all service life-limited components life limited parts and time controlled
components, and;
Point 2.11 of Appendix XI to AMC M.A.708(c) is modified as follows:
Appendix XI to AMC M.A.708(c) Contracted maintenance
2.11 Service life-limited components Life limited parts and time controlled
components
Life limited parts and time controlled components Service life-limited components
control is the responsibility of the operator.
The Part 145 approved organisation will have to provide the operator with all the necessary
information about the life limited parts and time controlled components service life-
limited components removal/installation so that the operator may update its records (see
also paragraph 2.22 ‘Exchange of information’).

Appendix III to GM1 M.B.303(b) is amended as follows:
Appendix III to GM1 M.B.303(b) ‘KEY RISK ELEMENTS’
C.2 Component control The component control should consider a twofold objective for components
maintenance:
- maintenance for which compliance is mandatory.
- maintenance for which compliance is recommended.
Supporting information Typical inspection items
Depending on each maintenance task, accomplishment is
scheduled or unscheduled. Refer to KRE C.1 ‘Aircraft Maintenance
Programme’.
Components affected by scheduled maintenance are of two
types:
Life-limited components are of two types:
- components subject to a certified life limit;
- components subject to a service life limit.
a) Components with a certified life-limit must be
permanently removed from service when, or before, their
operating limitation is exceeded. The life limitation is
controlled at the component level (in opposition to
aircraft level).
b) Components which are subject to a service life (‘time
controlled components’) include the following:
- components for which removal and restoration are
scheduled, regardless of their level of failure resistance.
Reference is made to hard time components: They are
subject to periodic maintenance dealing with a deterioration
that is assumed to be predictable (the overall reliability
invariably decreases with age): Failure is less likely to occur
before restoration is necessary;
- components for which failure resistance can reduce and drop
below a defined level: Inspections are scheduled to detect
potential failures. Reference is made to ‘On-condition’
components: They are called such because components,
which are inspected, are left in service (no further
1. Check that the mandatory maintenance tasks are identified as such and managed
separately from recommendations.
2. Sample check installed components (PN and SN) against aircraft records:
a. Correct Part Number and Serial Number installed.
b. Correct authorised release document available.
3. Check the current status of time-controlled components, with due consideration to
deferred items. They must identify:
a. The affected components (Part Number and Serial Number).
b. For components subject to a repetitive task: the task description and reference,
the applicable threshold/interval, the last accomplishment data (date, the
component’s total accumulated life in Hours, Cycles, Landings, Calendar time,
as necessary) and the next planned accomplishment data.
c. For components subject to an unscheduled task: the task description and
reference, the accomplishment data (date, the component’s total accumulated
life in Hours, Cycles, Landings, Calendar time, as necessary). Pay attention to
ETOPS and CDCCL components.
4. Check current status of life limited parts life-limited components. This status can
be requested upon each transfer throughout the operating life of the part:
a. The life limitation, the component’s total accumulated life, and the life
remaining before the component’s life limitation is reached (indicating Hours,
Cycles, Landings, Calendar time, as necessary).
b. If relevant for the determination of the remaining life, a full installation history
indicating the number of hours, cycles or calendar time relevant to each
installation on these different types of aircraft/engine.
5. Check if the aircraft maintenance programme and reliability programme results

maintenance action taken) on the condition that they
continue to meet specified performance standards.
Notes:
1. Restoration tasks for hard time components are not the
same as ‘On-condition’ tasks, since they do not monitor
gradual deterioration, but are primarily done to ensure the
item may continue to remain in service until the next
planned restoration.
2. Components subject to ‘condition-monitoring’ are permitted
to remain in service without preventive maintenance until
functional failure occurs. Reference is made to ‘fly-to-
failure’. Such components are subject to unscheduled tasks.
impact the component control.
6. Check that life-limited and time controlled components are correctly marked during
a physical survey.
Reference documents: EASA - EASA Part 21.A.805
- EASA Part M.A.302
- EASA Part M.A.305
- EASA Part M.A.501
- EASA Part M.A.503
- EASA Part M.A.710

4. Regulatory Impact Assessment (RIA)
3.2.2. Annex II to Decision 2003/19/RM (AMC to Part-145) is amended as
follows:
AMC No 2 to 145.A.50(d) is amended as follows:
AMC No 2 to 145.A.50(d) Certification of maintenance
2. In the case of the issue of EASA Form 1 for components in storage before Part-145 and
Part-21 became effective and not released on an EASA Form 1 or equivalent in accordance
with 145.A.42(a) or removed serviceable from a serviceable aircraft or an aircraft which
has been withdrawn from service the following applies:
(…)
2.4.4. Detail of life used for service life-limited parts life limited parts and time
controlled components being any combination of fatigue, overhaul or
storage life.
(…)
2.6.1 Serviceable aircraft components removed from a Member State registered
aircraft may be issued with an EASA Form 1 by an appropriately rated
organisation subject to compliance with this subparagraph.
(…)
(g) The flight hours/cycles/landings as applicable of any service life-limited
parts life limited parts and time controlled components including time
since overhaul should be established.
(…)
2.8. Used aircraft components maintained by organisations not approved in accordance
with Part-145. For used components maintained by a maintenance organisation not
approved under Part-145, due care should be taken before acceptance of such
components. In such cases an appropriately rated maintenance organisation approved
under Part-145 should establish satisfactory conditions by:
(…)
(b) replacing all service life-limit components life limited parts and time controlled
components when no satisfactory evidence of life used is available and/or the
components are in an unsatisfactory condition;
Point GM 145.A.55 (a) is amended as follows:
GM 145.A.55(a) Maintenance records
1. Properly executed and retained records provide owners, operators and maintenance
personnel with information essential in controlling unscheduled and scheduled
maintenance, and trouble shooting to eliminate the need for re-inspection and rework to
establish airworthiness.
The prime objective is to have secure and easily retrievable records with comprehensive
and legible contents. The aircraft record should contain basic details of all serialised
aircraft components and all other significant aircraft components installed during the
maintenance performed, to ensure traceability to such installed aircraft component
documentation and associated maintenance data as specified in 145.A.45.

3.2.3. Decision 2012/018/R (AMC and GM to Part-CAT) is amended as follows:
Point AMC1 CAT.IDE.A.105 is added as follows:
AMC CAT.IDE.A.105 Minimum equipment for flight
The operator should control and retain the status of the instruments, equipment or
functions required for the intended operation, such as but not limited to equipment
related to navigation approvals as FM immunity or certain software versions, that
are not controlled for the purpose of continuing airworthiness management.
Point AMC1 CAT.IDE.H.105 is added as follows:
AMC CAT.IDE.H.105 Minimum equipment for flight
3.2.4. Decision 2013/021/R (AMC and GM to Part-NCC) is amended as follows:
Point AMC1 NCC.IDE.A.105 is added as follows:
AMC NCC.IDE.A.105 Minimum equipment for flight
Point AMC1 NCC.IDE.H.105 is added as follows:
AMC NCC.IDE.H.105 Minimum equipment for flight
3.2.5. Decision 2013/022/R (AMC and GM to Part-NCO) is amended as follows:
Point AMC1 NCO.IDE.A.105 is added as follows:
AMC NCO.IDE.A.105 Minimum equipment for flight
Point AMC1 NCO.IDE.H.105 is added as follows:
AMC NCO.IDE.H.105 Minimum equipment for flight

4.1. Issues to be addressed
Technical records are the means to assess the airworthiness status of a product and its
installed components. Incomplete technical records may lead to a wrong assessment with
a safety risk. The economic impact of the recertification of a component is another aspect
of the issue.
Although from the owner/operator point of view there are specific paragraphs in Part-M
dealing with this subject, one of the largest group of questions received by the Agency
from the stakeholders and competent authorities are about continuing airworthiness
records, including their connection with the maintenance records. The main concerns relate
to the wrong understanding of the provisions on what should be kept to be able to assess
the airworthiness status of an aircraft and its installed components, and for how long.
This task will consider the introduction and impact of new technologies (paperless
operation) and copies of the records (scanned,…). Although Information Tool (IT) systems
are commonly used in certain organisations, there is a lack of guidance on their use. It is
important to highlight that the Acceptable Means of Compliance (AMC) give several ways
to comply with the intent of the rule to allow a tailor-made record keeping system
depending on the needs of different aviation communities.
Furthermore, the safety recommendation made by the AAIB from UK (ref.:UNKG-2007-
091) is addressed to retain maintenance records until the aircraft/engine/propeller or
component has been permanently removed from service.
This NPA amends Commission Regulation (EC) 2042/20036
and Decision 2003/19/RM7
of
the Executive Director of the Agency. Some records, which are not related to continuing
airworthiness but to the operation of the aircraft, were not clearly stated in the current
regulation, so it was considered adequate to propose an amendment to the Decision
2012/018/R8
of the Executive Director of the Agency (AMC and GM to Part-CAT).
Additionally the discussion led to a proposal for an amendment to Annex IV ‘Essential
requirements for air operations’ to the Basic Regulation. It is proposed to remove ‘When
the aircraft is leased, all records demonstrating the airworthiness of the aircraft must be
kept at least for the length of the lease.’. This proposal should be evaluated when dealing
with the next amendment to the Basic Regulation.
Feedback received from Industry and NAAs shows the following issues:
Parts’;
equivalent, and which documents are considered equivalent to an EASA Form 1;
6
Commission Regulation (EC) No 2042/2003 of 20 November 2003 on the continuing airworthiness of aircraft and
aeronautical products, parts and appliances, and on the approval of organisations and personnel involved in these
tasks (OJ L 315, 28.11.2003, p. 1)
7
Decision 2003/19/RM of the Executive Director of the Agency of 28 November 2003 on acceptable means of
compliance and guidance material to Commission Regulation (EC) No 2042/2003 of 20 November 2003 on the
continuing airworthiness of aircraft and aeronautical products, parts and appliances, and on the approval of
organisations and personnel involved in these tasks.
8
Decision 2012/18/R of 24 October 2012 on acceptable means of compliance and guidance material to Commission
Regulation (EU) No 965/2012 of 5 October 2012 laying down technical requirements and administrative procedures
related to air operations pursuant to Regulation (EC) 216/2008 of the European Parliament and of the Council —
Acceptable Means of Compliance and Guidance Material to Part-CAT

— Different interpretations of the need for ‘back to birth’ traceability;
— Inconsistency in 145.A.55 of the record-keeping periods and the periods applicable to
the transfer of records;
— Lack of guidance on the use of electronic signature;
— Lack of guidance on the acceptability of records copies (scanned, photocopy);
Frequency Identification);
— Lack of harmonisation with the FAA requirements in relation to continuing
airworthiness records.
Additionally, the Agency intends to address a Safety Recommendation made by the UK (ref
UNKG-2007-091): ‘It is recommended that the European Aviation Safety Agency (EASA)
amend EASA Part-145 (and Part-M as necessary) to require that maintenance and overhaul
records that are referred to in airframe, engine and propeller log books, and component
record cards, are deemed to be part of that log book or record card and are retained until
the aircraft, engine, propeller or component has been destroyed or permanently removed
from service.’
4.1.1. Safety risk assessment
Safety risks
In the worst case scenario, the presence of components with unknown airworthiness
status and history may be a contributing factor to or cause of a fatal accident with large
aircraft. Thus, the severity is estimated as catastrophic. Taking into account the absence
of known accidents attributed to this cause, the probability of occurrence is estimated to
be low.
The safety risk associated with the use of the information technology systems should be
addressed.
Additionally, the Agency intends to address a Safety Recommendation made by the AAIB
(ref.: UNKG-2007-091): ‘It is recommended that the European Aviation Safety Agency
(EASA) amend EASA Part-145 (and Part-M as necessary) to require that maintenance and
overhaul records that are referred to in airframe, engine and propeller log books, and
component record cards, are deemed to be part of that log book or record card and are
retained until the aircraft, engine, propeller or component has been destroyed or
permanently removed from service.’
4.1.2. Who is affected?
Owners, operators, maintenance organisations and independent certifying staff are
affected by the future rule as well as competent authorities.
4.1.3. How could the issue/problem evolve?
First of all, if the rule does not change, then the safety risks already identified will not be
addressed. Additionally, paperless operation is already in use and, although the current
regulation does not prevent this (there are some industry segments already using this),
more guidance should be provided, as in the use of information technology and records
copies, in order to ensure that related risks are mitigated.

4.2. Objectives
The overall objectives of the EASA system are defined in Article 2 of the Basic Regulation.
This proposal will contribute to the achievement of the overall objectives by addressing the
issues outlined in Section 4.1.
The specific objectives are to clarify the use of the current rules and to develop relevant
quidance on the use of new technologies for record-keeping in order to achieve safe and
cost-efficient rules.
4.3. Policy options
4.3.1. Inconsistency in the use of the terms ‘Life Limited Parts’ and ‘Service Life
Limited Parts’
Option 1. The term ‘service life-limited component’ is used for components maintained
according to requirements of different natures, which creates confusion. It could be better
explained, as well as ‘life limited parts’.
Option 2. Use of the term ‘critical component’.
Option 3. Use of the term ‘life limited part’ (LLP), which is well known by the industry and
currently used in Part-M and in ICAO. Due to the lack of clarity in the term ‘service life-
limited component’ (see option 1), this term could be deleted. In any case, the records
requirements should not be the same for all the components but depending on certain
characteristics. A set of requirements could be for LLP and other set for components which
are not LLP, but are affected by some maintenance in accordance with the instructions
provided by the Design Approval Holder (DAH). The term ‘time controlled component’
could be used to create another group of components with special characteristics in
accordance with the certification process. A definition of this term could be included in the
AMC using maintenance terminology.
Option
No
Short title Description
0 Baseline option (no change in rules; risks remain as outlined in the
issue analysis).
1 Clarify current terms under AMC
2 Use of the term ‘critical component’
3 Use of the terms ‘time controlled component’ and ‘life limited parts’
and clarify records requirements depending on the type of component.
4.3.2. Different interpretations as to which components require an EASA Form 1
or equivalent, and which documents are considered equivalent to an EASA
Form 1
Option 1. The intent of the current rulemaking task is to clarify for which components it is
needed to retain EASA Form 1 to assess its airworthiness status. The current regulation is
clear enough about what is equivalent to an EASA Form 1. Additionally, the Agency
initiated rulemaking tasks RMT.0018 and RMT.0571 ‘Installation of parts and appliances
that are released without an EASA Form 1 or equivalent’. On the other hand, it should be
clearly stated when an EASA Form 1 must be retained.

If an ‘equivalent’ to an EASA Form 1 is understood as using new technologies different
from the ones already addressed in the AMC to Appendix II to Part-M, then this option
should be checked in 4.3.5. and 4.3.6.
Option
No
issue analysis).
1 Clarify when the EASA Form 1 must be retained
4.3.3. Different interpretations of the need for ‘back to birth’ traceability
Option 1. The term ‘back to birth’ traceability could be introduced supporting every step of
the utilization of the component since it was manufactured. Every step of this utilization
should be supported with the corresponding information as a mean to assess the
airworthiness status of the component.
Option 2. Introduce the term ‘in-service history’ which partially incorporates the concept of
back to birth traceability but keeping some records up to a certain extent. An important
issue is ‘detailed maintenance records’ to support such history, not keeping this history
from ‘the birth’ of the component, but from certain time.
Option
No
issue analysis).
1 Introduce the term ‘back to birth traceability’ requesting to keep every
single document related to the part since manufacture.
2 Introduce the term ‘in-service history’ which partially incorporates the
concept of back to birth traceability but keeping some records up to a
certain extent and definition of ‘detailed maintenance records’.
4.3.4. Inconsistency in 145.A.55 of the record-keeping periods and the periods
applicable to the transfer of records
Option 1. The current inconsistency in 145.A.55 of the record-keeping periods and the
periods applicable to the transfer of records is considered an administive error. The
periods should be consistent.
Option
No
issue analysis).
1 Change the applicable period to retain records from three to two years
4.3.5. Lack of guidance on the use of electronic signature
The electronic signature is described in Directive 1999/93/EC of the European Parliament
and of the Council of 13 December 1999 on a Community framework for electronic

signatures. The records using this type of signature are addressed in the next point, so this
option is merged with the next issue.
4.3.6. Lack of guidance on the acceptability of record copies (scanned,
photocopy)
Option 1. More guidance to accept other forms of records different from the traditional
ones, paper or microfilm.
Option
No
issue analysis).
1 Additional guidance to accept records others than in ‘original paper’
4.3.7. Lack of guidance on the acceptability of new technology, such as RFID
(Radio Frequency Identification)
Option 1. More guidance to accept the RFID as other means to keep records.
Option
No
issue analysis).
1 Introduce guidance accepting RFID as part of records
airworthiness records
There are some differences between the FAA and EASA systems, but this topic is covered
by the bilateral agreement, so no action is expected by this rulemaking task.
4.3.9. Safety Recommendation
Option 1. Change in the rule to require that the maintenance and overhaul records are part
of the aircraft log book or component record card, and it must be retained until it is
completely removed from service.
Option
No
issue analysis).
1 Change in the rule to require the maintenance organisation to send the
owner/operator the maintenance records to be part of the log
book/record card and retain those records until it is completely
removed from service.

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